Tag Archive for 'Pneumonia'

This electron micrograph depicts an amoeba, Hartmannella vermiformis (orange), as it entraps a Legionella pneumophila bacterium (green) with an extended pseudopod. Image credit: Barry S. Fields / CDC.

Swimming in Lakes with Still Water Can Lead to Legionella Infection, Researchers Say

Feb 18, 2025 by Enrico de Lazaro

Legionella is an atypical cause of community-acquired pneumonia that often presents with a prodrome of fever, malaise, fatigue, and occasionally diarrhea...

This rendering depicts the secretion of cytokines, the tiny pink bits, from a cell. Image credit: Scientificanimations.com / CC BY-SA 4.0.

Antibody-Like Proteins May Halt COVID-19 Cytokine Storm

Apr 21, 2020 by News Staff

Cytokines are signaling proteins that stimulate inflammation and other immune responses. ‘Cytokine storm,’ or cytokine release syndrome, plays a critical...

Neutrophils forming NETs in cell culture. Note the expelled DNA strings (arrows). Scanning electron microscopy of neutrophils 3 h after plating and coculturing with 4T1 breast cancer cells. Scale bar - 25 µm. Image credit: Barnes et al, doi: 10.1084/jem.20200652.

Study Links Neutrophil Infiltration in Lungs to COVID-19 Symptoms

Apr 17, 2020 by News Staff

A little known yet powerful function of overactive white blood cells known as neutrophils — the ability to form neutrophil extracellular traps (NETs)...

Clarke et al demonstrate the capacity to simultaneously ventilate two test lungs of different compliances, and using only standard hospital equipment, modify the delivered pressure, flow, and volume in each test lung. Image credit: Monash University.

Coping with COVID-19: Australian Scientists Successfully Test Ventilator Splitting in Simulated Setting

Apr 14, 2020 by News Staff

A team of researchers from the Royal Women’s Hospital, Monash University and the Alfred Hospital has successfully tested, in a simulated environment,...

Active cigarette smoking and COPD up-regulate ACE2 expression in lower airways, which in part may explain the increased risk of severe COVID-19 in these populations. Image credit: Leung et al, doi: 10.1183/13993003.00688-2020.

Smokers, COPD Patients Have High Levels of Coronavirus ‘Entry Point’ Enzyme in Their Lungs

Apr 13, 2020 by News Staff

According to a new study published in the European Respiratory Journal, smokers and individuals with chronic obstructive pulmonary disease (COPD) have...

The Surviving Sepsis Campaign COVID-19 panel issued recommendations to help support healthcare workers caring for critically ill ICU patients with COVID-19. Image credit: Rosario ‘Charo’ Gutierrez, U.S. Air Force.

International Panel Releases Guidelines on Management of ICU Patients with COVID-19

Apr 3, 2020 by News Staff

The Surviving Sepsis Campaign COVID-19 panel, which includes 36 experts from 12 countries, has issued new guidelines for health-care workers treating intensive...

36-year old male with history of recent travel to Wuhan, presenting with fever, fatigue and myalgias. Coronal thin-section non-contrast CT image shows ground-glass opacities with a rounded morphology in both upper lobes (arrows). Image credit: Chung et al, doi: 10.1148/radiol.2020200230.

Study: Lying Face Down Improves Breathing in Severe COVID-19 Cases

Mar 25, 2020 by News Staff

In a study of patients with the severe COVID-19 disease hospitalized on ventilators, a team of researchers in Wuhan, China, found that lying face down...

Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Image credit: NIAID.

Patients who Take ACEIs and ARBs May Be at Increased Risk of Severe COVID-19

Mar 25, 2020 by News Staff

Angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) may increase the risk of severe COVID-19 cases, according to...

France’s Minister of Solidarity and Health Oliver Véran announced that taking anti-inflammatory drugs could be a factor in worsening a COVID-19 infection. Image credit: StockSnap.

Ibuprofen, Paracetamol and COVID-19: Here’s What You Need to Know

Mar 20, 2020 by The Conversation

There’s been some confusion recently on whether we should or shouldn’t take ibuprofen to treat symptoms of COVID-19, especially after the World Health...

This transmission electron microscope image shows SARS-CoV-2, also known as 2019-nCoV, isolated from a patient in the U.S. Virus particles are shown emerging from the surface of cells cultured in the lab. The spikes on the outer edge of the virus particles give coronaviruses their name, crown-like. Image credit: NIAID.

Study: SARS-CoV-2 Coronavirus Spreads Quickly, Sometimes Before People Have Symptoms

Mar 13, 2020 by News Staff

An international team of scientists from the United States, France, China and Hong Kong was able to identify how quickly SARS-CoV-2, a novel coronavirus...

Existing data from known coronaviruses can be used to predict which parts of SARS-CoV-2 are capable of activating the human immune system. Image credit: Grifoni et al.

Researchers Identify Targets for Effective Immune Responses to SARS-CoV-2 Coronavirus

Mar 12, 2020 by News Staff

Scientists from La Jolla Institute for Immunology, the J. Craig Venter Institute and the University of California, San Diego used existing data from known...

This scanning electron microscope image shows SARS-CoV-2 (yellow) isolated from a patient in the U.S., emerging from the surface of cells (blue/pink) cultured in the lab. Image credit: NIAID.

COVID-19 Has Median Incubation Period of 5.1 Days: Study

Mar 11, 2020 by News Staff

An analysis of data on infections from the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel human coronavirus that causes the respiratory...

This transmission electron microscope image shows SARS-CoV-2, also known as 2019-nCoV, the virus that causes COVID-19, isolated from a patient in the U.S., emerging from the surface of cells cultured in the lab. Image credit: NIAID-RML.

Chest CT Scans Reliable for COVID-19 Diagnosis, Limited for Identification of Specific Viruses

Mar 5, 2020 by News Staff

Radiologists from Wuhan, China found that chest CT had a low rate of missed diagnosis of COVID-19 (3.9%, 2/51) and may be useful as a standard method for...

Chest CT Has High Sensitivity for Diagnosis of COVID-19, Scientists Say

Mar 4, 2020 by News Staff

Chest CT, a routine imaging tool for pneumonia diagnosis, had higher sensitivity for diagnosis of the COVID-19 coronavirus disease as compared with initial...

Newly-Identified Coronavirus 2019-nCoV: Here’s What You Need to Know

Jan 27, 2020 by News Staff

The current outbreak of viral pneumonia in Wuhan, a rapidly flourishing capital city of the Hubei province and the traffic hub of central China, was caused...

Immunohistochemical analysis of a human lung section stained with anti-PIWIL4 antibody. Scale bars - 10 μm. Image credit: Wasserman et al, doi: 10.1172/JCI94639.

Researchers Identify New Type of Lung Cell

Sep 19, 2017 by News Staff

A research team led by Boston University scientists has identified a new type of lung cell that is implicated in the body’s immune defense against pneumonia-causing...